Dynamic attribute in a custom component

has anybody tried generating an attribute dynamically in a custom component
e.g
<cx:inputText value="" foo="footest"/>
where foo is not defined in the custom inputtexttag.java
can we have a hashmap which stores all the unknown attributes into the hashmap upon loading and then handle it in the setproperties

can we have a hashmap which stores all the unknown
attributes into the hashmap upon loading and then
handle it in the setpropertiesJSF's UIComponent has a function of generic attributes.
Use <f:attribute>.
<cx:inputText value="" foo="footest"/> Anyway, if you want to use the syntax like this, you should provide a custom
tag handler which has a setFoo() method and whose setProperties() method
copys the value to the corresponding (generic) attribute of the component.

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Hi Evan,
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Custom component and non-primitive types of attributes

Dear programmers
I try to develope a custom UI component that one of its attribute is an ArrayList. For example:
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How can I convert the expression?

so how will I be able to convert it?Only your converter knows it.
By the way, is your Matrix component fully completed including its children components?
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Hello Experts:
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Hi,
Dynamic Attributes for Bid Invitation can be created using customization.
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PS : Reward points if it helps you.

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hi all,
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Well if you are still interested in using a text component
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Hi,
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2) in either the encodeBegin or encodeEnd method, create a component and encode it:
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dimensionStateGroupDataList.encodeEnd();
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Hi, I have a custom dataTable component that I'm trying to get to work. It has to be a custom component because dataTable doesn't support rowspan, colspan, multi line headers, and a rendered attribute for rows. The problem is, that when I wrap the column tag inside my row tag then the method for the inputText tag never gets called in the UPDATE_MODEL_VALUES phase.
I'm starting to think that JSF doesn't support 2 levels of tags between the inputText and dataTable. I'm hoping that someone can tell me what I have wrong with my components.
Here is the JSP snippet.
<cjsf:rptTable>
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</cjsf:rptTable>Here is what it renders. It looks to me like everything renders fine. So I'm guessing that there is something in a component that is causing JSF during the life cycle to not be able to process correctly.
<table>
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          </tr>
          <tr>
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          </tr>
          <tr>
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     </tbody>
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Here are the components:
public class UIRptTable extends UIComponentBase {
     public UIRptTable() {
          setRendererType("tblmaint.rptTableRenderer");
     public String getFamily() {
          return "javax.faces.Output";
public class UIRptTableData extends HtmlDataTable {
     public UIRptTableData() {
          setRendererType("tblmaint.rptTableDataRenderer");
     public String getFamily() {
          return "javax.faces.Data";
public class UIRptTableRow extends UIOutput {
     public UIRptTableRow() {
          setRendererType("tblmaint.rptTableRowRenderer");
     public String getFamily() {
          return "javax.faces.Output";
public class UIRptTableCol extends UIColumn {
     public UIRptTableCol() {
          setRendererType("tblmaint.rptTableColRenderer");
     public String getFamily() {
          return "javax.faces.Column";
}Here is part of the faces-config file in case you need it.

<component>
     <component-type>tblmaint.rptTable</component-type>
     <component-class>com.monsanto.ag_it.fieldops.aim.tblmaint.component.UIRptTable</component-class>
</component>
<component>
     <component-type>tblmaint.rptTableData</component-type>
     <component-class>com.monsanto.ag_it.fieldops.aim.tblmaint.component.UIRptTableData</component-class>
</component>
<component>
     <component-type>tblmaint.rptTableRow</component-type>
     <component-class>com.monsanto.ag_it.fieldops.aim.tblmaint.component.UIRptTableRow</component-class>
</component>
<component>
     <component-type>tblmaint.rptTableCol</component-type>
     <component-class>com.monsanto.ag_it.fieldops.aim.tblmaint.component.UIRptTableCol</component-class>
</component>

<render-kit>
     <renderer>
          <component-family>javax.faces.Output</component-family>
          <renderer-type>tblmaint.rptTableRenderer</renderer-type>
          <renderer-class>com.monsanto.ag_it.fieldops.aim.tblmaint.renderer.RptTableRenderer</renderer-class>
     </renderer>
</render-kit>
<render-kit>
     <renderer>
          <component-family>javax.faces.Data</component-family>
          <renderer-type>tblmaint.rptTableDataRenderer</renderer-type>
          <renderer-class>com.monsanto.ag_it.fieldops.aim.tblmaint.renderer.RptTableDataRenderer</renderer-class>
     </renderer>
</render-kit>
<render-kit>
     <renderer>
          <component-family>javax.faces.Output</component-family>
          <renderer-type>tblmaint.rptTableRowRenderer</renderer-type>
          <renderer-class>com.monsanto.ag_it.fieldops.aim.tblmaint.renderer.RptTableRowRenderer</renderer-class>
     </renderer>
</render-kit>
<render-kit>
     <renderer>
          <component-family>javax.faces.Column</component-family>
          <renderer-type>tblmaint.rptTableColRenderer</renderer-type>
          <renderer-class>com.monsanto.ag_it.fieldops.aim.tblmaint.renderer.RptTableColRenderer</renderer-class>
     </renderer>
</render-kit>I sure hope that someone can help me out. Please let me know if you need any additional information.
Thanks,
Ray

Hi, Ray!
1) I was trying to put a button in the column header (for sorting) and I couldn't get that to work. That involved the >colhdr tag. I got that to work but I don't remember the fix. I'll look it up and reply back with that when I can.Dealing the first part of your trouble, you need NOT a custom component.
I have looked through the implementation of RepeaterRenderer, as you advised me, and found that the multi-header possibility is included in the implementation of dataTable control.
The code below is the part of source of repeater.jsp with only change:
<d:data_repeater>  <h:dataTable>
And it works fine.
<h:dataTable id="table"
binding="#{RepeaterBean.data}"
     rows="5"
value="#{RepeaterBean.customers}"
var="customer">
<f:facet name="header">
<h:outputText value="Customer List"/>               <!� First Header row -- >
</f:facet>
<h:column>
<%-- Visible checkbox for selection --%>
<h:selectBooleanCheckbox
id="checked"
binding="#{RepeaterBean.checked}"/>
<%-- Invisible checkbox for "created" flag --%>
<h:selectBooleanCheckbox
id="created"
binding="#{RepeaterBean.created}"
rendered="false"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Account Id"/>               <!�Second Header row -- >
</f:facet>
<h:inputText id="accountId"
binding="#{RepeaterBean.accountId}"
required="true"
size="6"
value="#{customer.accountId}">
</h:inputText>
<h:message for="accountId"/>
</h:column>
<h:column>
<f:facet name="header">
<h:outputText value="Customer Name"/>               <!�Second Header row -- >
</f:facet>
<h:inputText id="name"
required="true"
size="50"
value="#{customer.name}">
</h:inputText>
<h:message for="name"/>
</h:column>
<h:column>
<f:facet name="header">                    <!�Second Header row -- >
<h:outputText value="Symbol"/>
</f:facet>
<h:inputText id="symbol"
required="true"
size="6"
value="#{customer.symbol}">
<f:validateLength
maximum="6"
minimum="2"/>
</h:inputText>
<h:message for="symbol"/>
</h:column>
<h:column>
<f:facet name="header">                    <!�Second Header row -- >
<h:outputText value="Total Sales"/>
</f:facet>
<h:outputText id="totalSales"
value="#{customer.totalSales}">
<f:convertNumber
type="currency"/>
</h:outputText>
</h:column>
<h:column>
<f:facet name="header">                    <!�Second Header row -- >
<h:outputText value="Commands"/>
</f:facet>
<h:commandButton id="press"
action="#{RepeaterBean.press}"
immediate="true"
value="#{RepeaterBean.pressLabel}"
type="SUBMIT"/>
<h:commandLink id="click"
action="#{RepeaterBean.click}"
immediate="true">
<h:outputText
value="Click"/>
</h:commandLink>
</h:column>
</h:dataTable>
You may have a look at HTML source to prove that dataTable is already what you need:
<table id="myform:table">
<thead>
<tr><th colspan="6" scope="colgroup">Customer List</th></tr>
<tr>
<th scope="col"></th>
<th scope="col">Account Id</th>
<th scope="col">Customer Name</th>
<th scope="col">Symbol</th>
<th scope="col">Total Sales</th>
<th scope="col">Commands</th>
</tr>
</thead>
<tbody>
2.) The second trouble is still unsettled as previously. Right now I have different task at my job, and I can�t continue investigation of this problem.
But when you find smth., please let me know. I�ll be very grateful.
Regards,
Oleksa Stelmakh

Unable to Edit the View in Custom Component

Hi Experts,
Please help me to resolve this issue !
I am unable to lock the BOL Entity in my custom component using BTAdminH. I have written the below code in the Edit event Handler for Edit Button. The lr_entity->lock( ) condition statement is getting false and it is skipping the "set_view_editable( me )." code statement. Why??
This is code excerpt that I have taken from edit button of the BP_HEAD/AccountViewSet and altered to my component/View
DATA: lr_entity     TYPE REF TO cl_crm_bol_entity,
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TRY.
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IF lr_entity IS BOUND.
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ENDIF.
ENDIF.
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me->view_group_context->set_view_editable( me ).
Exception Details
CX_SY_REF_IS_INITIAL - Dereferencing of the NULL reference
Method: ZL_ZVKH8_DETAILSEF_IMPL=>EH_ONBACK
Thanks,
Bujji

Hi Summit & NishaNC,
Thanks for your responses !
As suggested, I have debugged the code for ->lock( ) method and there are exceptions raised from some methods.
Method GET_LOCK () -> Method GET_ROOT () ->Method GET_PARENT ()
At GET_ROOT( ) method i have received an exception
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Later when I have checked in MODEL Browser, I found that the BOL object "BTAdminH" for my view is an Access object and not the Root Object.
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If this is TRUE then I think this is the major problem with my custom component where even the cross component navigation is also not happening and in many places I am receiving "Dereferencing NULL Value" information.
Also I have gone through some of the Threads and one information that I found from Sumit Mittal
1. An access object is an independent entity, has primary keys of its own.
2. A root object is a special access object that is at the top of the hierarchy based on business rules.
3. A dependent object's primary keys are supplied by access objects and it's lifetime is bound to them. If the parent object is destroyed, the dependent object is also destroyed.
4. Search objects are query objects useful for querying root objects
5. Search result objects - Search objects return the results in the form of a result object together with a relation pointing to the root object.
6. View objects - ?
7. Dynamic search objects - Used in advanced search, supports ranges and operators
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Bujji

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I got a message from the console:
Wrong columns attribute for PanelGrid id0:id4: -2147483648
but i have set the columns attribute in the code above, so what's happening? or please give some advice about how to render the component tree by myself in Restore View with the tree constructing code in the custom component class code,just lke the code above.
Best Regards:)
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Well, i don't know if i have got my question clear.
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public void processRestoreState(javax.faces.context.FacesContext context,java.lang.Object state)is not the right way?
Best Regards:)
Robin

Advice on creating a tricky custom component

Hi,
I'm working on creating a custom component which displays a image at the top of the canvas, and loops through a passed array collection, displaying each row of the array collection in a item renderer. So the component should look like this (see attached image).
As you can see from this image the header is a image itself, this will differ every instance of the panel, there should be 3 of these panels on the page. Then each row of data is a item renderer displaying the data provided from a array collection of value object. If there are 4 items in this array collection then the panel should show 4 rows, if there are 2 row in the array then the panel will display 2 rows. Also the height of the panel will dynamically change depending on the number of rows to show.
I was thinking of extending a Canvas component, and then passing in the image URL and trying to load and draw the image dynamically, then I was thinking of using the Drawing API to create the rectangle shape using the drawRoundRectComplex() of the graphics class.
The problems I see with this is that I don't think the drawn rectangle shape can re-draw itself to show the change in height when more or less row of data need to be be displayed.
Another option I have been thinking about is extending the Panel class to create my component, this may be better for handling the height resizing, but I'm not sure it can support the look of this component (the header image and the three rounded corners).
Could anyone give me some advice on what would be the better option for creating this component.
Thanks
Stephen

How to create custom component in CRM 2007

Hi.
I am new for the CRM 2007 Web UI.
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Like this so many Components are there.
I want how to create our own component.
I created it as follows.
Open the Transaction code bsp_wd_cmpwb.
Provide Z Name in the Component.
Zcomponent
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GO to Browser Component Structre.
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Provide View name.
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Go to view Layout.
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<%@page language="abap"%>
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Hi,
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LR_BOL type ref to IF_BOL_BO_PROPERTY_ACCESS
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take a look at lr_bol methods so that you can see the set and get methods.
Regards,
Renato.

Best strategy for variable aggregate custom component in dataTable

Hey group, I've got a question.
I'd like to write a custom component to display a series of editable Things in a datatable, but the structure of each Thing will vary depending on what type of Thing it is. So, some Things will display radio button groups (with each radio button selecting a small set of additional input elements, so we have a vertical array radio buttons and beside each radio button, a small number of additional input elements), some will display text-entry fields, and so on.
I'm wondering what the best strategy for tackling this sort of thing is. I'm sort of thinking I'll need to do something like dynamically add to the component tree in my custom component's encodeBegin(), and purge the extra (sub-) components in encodeEnd().
Decoding will be a bit of a challenge, maybe.
Or do I simply instantiate (via constructor calls, not createComponent()) the components I want and explicitly call their encode*() and decode() methods, without adding them to the view tree?
To add to the fun of all this, I'm only just learning Faces (having gone through the Dudney book, Mastering JSF, and writing some simpler custom components) and I don't have experience with anything other than plain vanilla JSP. (No EJB, no Struts, no Tapestry, no spiffy VisualDevStudioWysiwyg++ [bah humbug, I'm an emacs user]). I'm using JSP 2.0, JSF 1.1_01, JBoss 4.0.1 and JDK 1.4.2. No, I won't upgrade to 1.5 (yet).
Any hints, pointers to good sample code? I've looked at some of the sample code that came with the RI and I've tried to navigate the JSF Blueprints stuff, but I haven't really found anything on aggregating components into a custom component. Did I miss something obvious?
If this isn't a good question, please let me know how I can sharpen it up a bit.
Thanks.
John.

Hi,
We're doing something very similar. I had a look at the Tomahawk Date component, and it seems to dynamically created InputText components in the encodeEnd(). However, it doesn't decode this directly (it only expects a single textual value). I expect you may have to check the request yourself in decode().
Other ideas would be appreciated, though - I'm still new to JSF.

Defaulting dynamic attributes and weightings for BID INVITATION

Hi Friends
I have a task at hand to default the dynamic attributes( some custom defined fields for the bidder) for bid invitation.
Can anyone help me with this?
Thanks in Advance
Regards

Hi Ankur,
I assume you are looking for attributes automatically populated, when a user
creates a bid invitation. Did you try to work with a template and define the
bid invitation in the way required and create a bid invitation based on the template?
Another option is to define the attributes for well defined categories and let the
users use the "propose" button.
Thanks,
Claudia

Dynamic attribute in a custom component

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